/*
 * Copyright (c) 2022 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { ImageFilterBase } from './ImageFilterBase';
import { PhotoEditMode } from './PhotoEditType';
import { PixelMapWrapper } from './PixelMapWrapper';

export abstract class PhotoEditBase {
  private editMode: PhotoEditMode;

  constructor(mode: PhotoEditMode) {
    this.editMode = mode;
  }

  abstract entry(pixelMap: PixelMapWrapper): void;

  abstract exit(): ImageFilterBase;

  abstract clearCanvas(): void;

  abstract setCanvasContext(context: CanvasRenderingContext2D): void;

  abstract setCanvasSize(width: number, height: number): void;

  mode(): PhotoEditMode {
    return this.editMode;
  }

  name(): string {
    return this.toString();
  }

  private toString(): string {
    switch (this.editMode) {
      case PhotoEditMode.EDIT_MODE_CROP:
        return 'crop';
      default:
        return 'unknown';
    }
  }
}